My feeling is that this is temporary. Currently there is a big fight about what is offensive and what is not. It is only logical that, when that public debate is still ongoing, people will have less tolerance towards offensiveness: we haven't reached a consensus yet on what we should tolerate in our online language. We as a species are not used to the responsibility of anonymous communication and the repercussions it has on how we act and perceive that communication.
Also, movements and changes most of the time go to the other extreme first, before landing in the middle somewhere. That's just how change often (not always) works.
That, or you're getting old and you're doing the "back in my day" thing. Could be that too. The world changes, language changes, jokes change. It's just part of life man.
Edit: welp, this apparantly is a hot take, when I thought it was quite neutral. I'm not saying we shouldn't stand up against offensive behaviour (my view is the opposite). It's that coming to a sensible consensus about certain topics as a society takes time. It takes time to convince people to change their ways, but it also takes time to not fight for extremes when you're having new talking points. Everything is balance. But in my attempt to keep it short I apparantly didn't convey much of that message.