So then you are also old enough to remember that at one time most people were more balanced then to believe fake news.
You are old enough to remember a society where the number of raped women was closer to 1 / 20 where as now it is 1/3.
You are old enough to remember a society where believing in right and wrong was the norm , as opposed to now when more then half the people's definition of right and wrong is 'whatever most of us feel'.
If you think those things you listed are in no way contribute to the decline in mental health of the overall population. Think again. They Just don't contribute the way you might expect.
Does watching or interacting with all kinds of hypersexualized images make you a rapist. Of coarse not, it does incline you to treat others less as people and more as objects an a screen.
Does watching or interacting with all kinds of violent material make you and axe murder? Of coarse not, but it does make you more likely to accept the possibility the violence can be morally used to 'make things better'
Media especially social media also make you a person who cares less about real people, and helping them , then about the things that keep you entertained, and the approval of the 'click'.. They use up time you may have spent thinking about deeper issues like , love , justice and kindness and anesthetize your conscience. Making you much more prone to accept whatever garbage is pushed into your bubble rather then thinking critically. The info comes too often too fast to really process.
yes, these things can and do change us , and not for the better. There needs to be deeper conversation around how to make better use of these technologies rather then use them to addict consumers and sell whatever kind of sugar high that generates the most money.
Not that I'm saying that's realistic, but I suspect unless it happens we are headed towards a dystopian future.