The thing is, if there was a new party with Nigel Farage and Lawerence Fox for example. Charismatic charachters who are well funded, these days, with declining loyalty to both established parties they would soon eat into their vote share. We saw it When Nigel Farage formed the Brexit party, it came out of nowhere and in a few months won the most seats in the Euro elections.That is the 64 thousand dollar question and, one that many old and new conservative voters 'including those who hold their noses' while voting want it dealing with.
Meanwhile sadly as long as the judiciary and legal professions are advocates more for open borders than the nation state, and while the media continues too throw shade at those who want to fundamentally change immigration laws, its going to be a hard slog. If the 'PM fails to use both an 80 seat majority' and parliament to change the law swiftly, it may well be the final cut as part of the death by a thousand cuts that is doing for his premiership and the conservative parties demise.
Those on the right of politics are not going to just give up, but sadly I think many who want all immigration curtained or even halted until the nation can adequately resource actual population levels and sustain infrastructure, are going to be disappointed.
I know that was a one issue thing and was all about Brexit, but Johnson only got his large majority because Nigel stood down a lot of his canditates. They don't even need to win any seats, its the fear of eating into the vote share where there isn't a large majority and letting the other side in. Its the only thing politicians fear, losing their jobs and access to the gravy train.
I think the public aren't prepared to ignored anymore, and when they are angry you can get people who haven't voted for a long time doing so, for parties that they wouldn't have considered voting for, before.