Personally, I don't think it's either, because what even is strong and weak? The way one defines strength and weakness can be completely from another, and so it's just the matter of subjective perceptions.
I normally like to think about it this way, we all start from the same point in life, which is 0, but then from the very first second into life, we all branch out in different directions. Some have more supports than others, and some have more challenges thrown their ways than others, which ultimately shape everyone as their individual selves.
Life is like a scale, especially when it comes to the moments of crisis and when it comes to suicides. It's about balancing between sufferings and the amount of resources we have to help cope with the sufferings. When someone is suicidal, it's because that scale is imbalanced, not because they are weak or strong. It's both about internal and external factors of a person that led to them wanting to ctb.
That's just how I see it. I get really irritated when someone calls me weak for having suicidal thoughts and tells me to "be stronger". Literally, f**k off.