The problem is that the conservative and traditional right aren't too popular, so they need to go for the far-right. Those parties are in full MAGA-mode, focusing on things like immigration. It is so, so much easier to sway public opinion by blowing up incidents involving immigrants, than to convince the public that they should accept reduction or degradation of services due to tax cuts.
Far-right politicians discovered some time ago that they can straight up lie through their teeth, and face zero consequences. And those lies will propagate through social media, and people will accept them as facts.
It seems like critical thinking among huge parts of the population is considerably down. I've heard seemingly smart people I know regurgitate lies they've picked up on social media, which they could have fact checked in 30 seconds.