No, that has been illegal for a long time.

It's being enforced more these days, perhaps because social media makes it more tempting and easier to insult politicians in a manner where it can be easily detected. In the old days, you'd have to hand out flyers or get your letter to the editor published in a newspaper, in order to insult politicians where they could notice, and even then there was no way to automatically detect it. But when people insult politicians on social media, it's an extremely low bar for the effort required, both to do it, and to detect it.

If someone were to insult me on social media, I'd never know about it, because I'm not constantly monitoring Twitter. But some politicians pay some agency to constantly monitor Twitter etc, and then they file complaints about everyone they catch in the act, and then the jackbooted police kick down the perpetrators' doors and confiscate their phones and computers.

Are these adults? This level of sensitivity is what I'd expect from a toddler. We tell them to ignore it and usually/hopefully they grow up into healthy adults that don't mind insults from strangers.