Ten years ago, I would have agreed with you. If a conservative (most likely socially conservative) 3rd party is created today, all that will be accomplished is a splitting of the fiscal and socially conservative votes and a guaranteed liberal majority in government-especially in presidential races.
This has effectively already happened. When the Tea Party movement started gaining steam, it was folded into the Republican Party, which im not sure if that was a great idea. Tea Party was a populist movement, and not necessarily a conservative one. So there is, and has been an ideological schism in the Republican party for some time now, and while combining the bases was able to win the white house in 16, the differences between the two are causing problems now. If the Republican party isn't broken, its certainly walking with a limp.
As far as the proposed bill from the gentlelady from Texas is concerned, that is destined to die in committy as all the other gun control bills she has offered up. Pretty sure she is the only one to sign on to this thing, no other co-sponsors. She knows this thing goes nowhere, but she gets to campaign on "introducing the toughest gun gun control legislation ever brought before congress" or some such nonsense. Diane Finestien she ain't.
But, what is to be done now? Personally, I think we, as responsible gun owners, should keep in mind that Democrats writ large are not necessarily the enemy. Controversial statement I know, but hear me out. Something like 7 million new gun owners in 2020, many of them liberal minded folks that had a major wake up call when they realized that they may have to be responsible for their own personal protection. Loads of new hunters seeking a covid friendly activity were created this past year. We have a lot of new people to support the 2A cause.
Befriend some of your liberal neighbors, if you don't have any liberal neighbors, head into town and find some....think they hang out at Starbucks or something