hash wars don't happen because of people paying attention to shitcoins like these two. hashwars happen when they pull the hashrate they own from bitcoin and put it elsewhere. and also it intensifies when they pump that shitcoin so that it creates incentive for miners to switch.
you can't prevent them from pumping their altcoin, the whole altcoin market survives on pump and dumps anyways. it just happens that pump of bitcoin forks have additional damages.
The hashwar happend because there is now a strong player disrupting Bitmain. Why is that bad?
The idea of SV is to keep the Bitcoin protocol on purpose and clean, open to onchain scaling as much as economics and tech is able to allow. Why is that bad?
Only a minimalistic protocol (like smtp, or TCP IP) is really able to bootstrapping world wide and removes all sorts of middle men including protocol devs.