I don’t know that wasting time shows you are a “fighter” - sounds more like just being vane and symbolic.
But - he could have indeed done more to prevent this - such as putting public pressure using the bully pulpit for not resigning in time for a special election is something he could have done and has not - get on the conservative talk shows, Fox News, etc. demanding he resign in time to allow for a special election could possibly shame him into doing so. He hasn’t done that. There was a time when the conservative mediasphere would have done that on its own - the talk radio circuit, etc. “Call this guys office and demand he resign in time for a special election! What’s the difference to him in resigning two weeks early? It wouldn’t make a difference to him, but could make a huge difference for the country.” Hasn’t happened. Just us reading articles likes this and commenting on news forums.
Same way we used to go toe to toe with Democrats on raising money for our candidates and matching them ad for ad and working our tails off just as much as they did...in the last few election cycles, our side has basically rolled over and played dead...across the board - whether they be establishment or “MAGA” candidates...the Democrats and their base have outraised and outworked us dramatically.
The Democrats are doing a better job of motivating their base to vote. You have to do stuff like this. Even if it's "grandstanding".
Your response sounds timid. For political reasons, you put everybody on record. Not sure why you want to shy away from doing that.