Why do you trust the government to ban non-political speech?
Their definition of what is or isn’t protected political speech is going to be warped by their capability to ban non-political speech.
The left has been talking for years about how what would we have classified 20 as political speech 20 years ago is not really political speech but hate speech, and inciting people to violence.
Even in the U.S., which is highly protective of speech, we've had carve outs for obscenity, etc., that have been fairly workable. It's hard to take a rule directed at banning porn and apply it to political speech.