Outslide of which party? The Republican Party or the Trump MAGA Party? Bannon is trying to guard the Trump MAGA Party.
Traditional conservatism died with Pat Buchanan.
Just like there's no such thing as a traditional Democrat anymore.
Today's Republicans are about 2/3 populists (which is what you call the Trump/MAGA wing) and 1/3 mostly apolitical business people whose main alignment with the GOP is lower taxes and favorable business conditions.
Populists are very close to right wing libertarians like myself. And in turn, we are both very close to traditional liberals (note I didn't say Democrats). We value our rights. Rights to speech, self defense, and fair redress are at the top of the list, and that word "redress" is very broad and includes things like elections, civil and criminal law, and protests.
And the business types under the Big Tent, tell us we shouldn't be paying for services we're not getting. And that concept is also very broad and covers things like cops kneeling for communists and a Congress that hasn't passed a budget in 30 years and refuses to stop spending non-existent money.
Personally I identify as a libertarian, not registered as a Republican and don't have a dog in Republican races. But I was raised by a hippie dad and a conservative mom, and dad was by my 9 year old side during the antiwar protests in the 60's. I used to have hair down to my butt and probably smoked more weed in my.life than Snoop. So I like peace, and I like freedom.
And I don't like censorship. And since I'm reasonably well educated I don't like the twisting of the truth. Both of which are very dangerous, the first debatably more so than the second. As far as I'm concerned we need to decentralize political power in this country, so things like this don't happen. And the way to do that is by controlling the purse strings.
The problem is that Congress which controls the purse strings, will never vote to control their own purse strings. So it devolves to us the voters, to control the people who control the purse strings. Which means we have to stop voting for the people who don't want things that way.
Which in turn means, the institutions that presently control these people through their purse strings, need to be constrained. Both parties at present are nothing more than gigantic money laundering machines. As far as I'm concerned we could take them both apart and the country would be better off for it.