Might be cold comfort but I would prefer it takes a decade of crawling towards it rather than lose everything outright because someone made a strategic failure trying to win a red state.
Talarico walking back his position didn't convince a single bigot. They have not changed their attacks against him on this issue. I suspect that the attacks will intensify because he demonstrated a willingness to cave. But this will not be rewarded with their votes. Bigots will vote for the greater bigot every time.
You cannot appease fascists.