I always hated pretending to care about supporting people in the things that they do.
Why would you support them if you don't mean it?
It seems like it is just something that people do and they don't mean it
It is hard to tell if someone means it or not when they offer support but, either way, it is important that we show each other support. If nobody offered support then people would feel let down and depressed.
I'm not going to bother anymore.
I think you should have some self reflection on why you are this way. It's great to be supportive of people that way they return the favor.