I don't know if you're just misunderstanding things or wilfully spreading misinformation, but just in case:

1. Ajit Pai started working at the FCC under George W. Bush.

2. Ajit Pai was nominated under Obama for a republican seat at the recommendation of Mitch McConnell: no more than 3 FCC commissioners can be of the same party so the split is generally[0] 3 of the president's party and 2 of the opposition, Ajit Pai was a GOP pick.

3. Ajit Pai was made chairman of the FCC by Donald Trump.

Ajit Pai is a thoroughly Republican operative. Getting rid of Pai would not score any points with the republican party (he's doing exactly what he's supposed to do there), nor would it score any points with the democratic party (way too little, way too late, no chance of the damage done being repaired, and what happened was exactly what'd been predicted when he was made chairman).

[0] when that comes up / is possible: commissioners terms are 5 years (though they may serve up to 6½ if their replacement is not yet appointed) and the seats are staggered so one commissioner's term is up every year

He was McConnell’s nominee for one of the Republican positions during the Obama administration and was promoted to chairman early in the Trump administration. It’s safe to say that he’s not out of step with the GOP leadership when he has the backing of both key Republican leaders.

Moreover, Pai has resolutely stood for large companies being insulated from competition and being allowed to extract more money at the expense of the public. That’s Trump’s platform, not an aberration!

...not really? Trump appointed him as chairman, and Mitch McConnell picked him for the board in the first place:

> That’s not to say Obama shared Pai’s views—rather, the president was abiding by the convention that the minority party gets to nominate two appointees to the five-seat commission. http://fortune.com/2017/12/14/ajit-pai-net-neutrality-donald...