IF people were truly being sincere about the "slippery slope" argument, then that is a conversation that could be had. It's just that it almost never is sincere. I don't want to go to too many random places, but...
People trying to ban transgender women from women's sports are mostly people who don't give a crap about women's sports and many of them are people who actively fought against Title IX for women's sports back in the day. Like, 5 minutes ago they couldn't give a damn about women's sports, but now they care supposedly about "fair competition" against trans females? Again, there is maybe a conversation to be had about some sports and physicality, maybe, but 99% of the folks screaming about "it isn't fair" don't actually know, care, or want to know truth.
And there's gay marriage. All the folks that want to argue against gay marriage that say "what's next, animals?" aren't even trying to pretend to care. Can a goat give consent? Not as we define it legally, so no... there is 0% chance any slippery slope could lead to man-goat marriage. It's just nonsense. Oh, but just you try and raise the age of consent to adult age in a state here in the US! Seriously, watch all those folk come out of the woodwork to defend the 75 year old man being allowed to marry the 14 year old girl because he conned (or paid) their parents for the "right" to do it so he can. have sex with an underage girl that otherwise wouldn't be legal. But folks will try their damn best to thwart lesbians and gay men in love or transgender folks from being happy with their adult partners over the fear of "slippery slope."
How about... rich people have too much power. Where's that slippery slope? Can't let rich people and politicians get away with something the rest of us can't, because THAT slippery slope happens every day, right? Except, nobody says boo about that slippery slope.
Back on topic post rant...
I get how sincere caring people might have concern over making it "too easy" for people who want to die because of a momentary struggle. That impulse can be hard to fight and maybe if it is harder to die you are "forced" to ride that moment and come out the other side and are glad you did. Cool. But are we doing that for gun control? Same folks who are fighting right to die are the same folks preventing background checks that would prevent people with mental illness from obtaining those weapons or at least make it more difficult. But, "slippery slope" and all... making it harder to get guns is too much to ask, right?
I think the argument for euthanasia, assisted or otherwise, for people in lots of pain or terminal illnesses is an easier pill to swallow for any reasonable person who cares. When quality of life i very low and the person is able to be self-aware and ask to be let go it is an easier argument. I mean, we put down pets for less problems, without those pets getting a say, right? Maybe that sick dog wanted to stay around another year to be with his favorite human. We don't know... but we put our pets to death about as much so we don't have to see them suffer as we do to ease that pet's suffering.
In conclusion... so what if assisted suicide for serious medical problems makes it easier, slipper slope and all, for people who are "merely" depressed to also do it. Who am I to decide whether you have to stay here or not? Why do I get a vote to make you stay here and suffer if you don't want to be here?
IF there is a fear that making suicide too easy would mean a wave of suicides... doesn't that say something about the human condition and our society that maybe we ought to be working to make life better for everyone?
You know... IF we wanted to... there is no reason for anyone to be homeless or hungry, and most basic medical needs could be taken care of as well. The millionaires and billionaires would not even notice the sacrifice from the top to level the playing field at the bottom. Want to help stop unwanted suicides IF you truly care? Let's start there. Give people reasons to want to live, less struggles in their life to divert them from their desired path. Then, maybe we can start being kinder to everyone. Don't go out of your way to make someone's life miserable just for your amusement or progress. That would lift a whole chunk of other suicidal people from the depths.
But don't try and sell me on the "slippery slope" because you "care" or whatever. Those people don't care one bit.