This seems like a classic coordination problem. If enough people refuse, companies will have their talent pool limited.
We could use this group to help match companies and developers who don't want to leetcode.
If it's true that leetcode filters out great developers, than companies who 'can't find talent' should be able to use our group to find some. In fact, it could be a great sign of how willing the company is to think against the current hiring zeitgeist.
Edit: Here's a quickly built site. say-no-to-leetcode.netlify.app