I just listened to The Weekly Show with Jon Stewart where they discussed the viability of Biden's campaign.
The Democrats have the unfortunate condition of being, you know, sane. We have no issue of challenging the status quo, asking for a change.
I have yet to hear from anyone of significance say Trump should suspend his campaign for any of the same reasons that Democrats have for Biden. The GOP have already begun the "fall in line" stage and the fucker hasn't even been formally nominated. He's the "presumptive nominee."
The funny thing is that the GOP could, quite literally, put in anyone at this point. Any fascist asshole (e.g. DeSantos, MTG, Boebert, etc.) and their base will come out to vote for them.
If Biden gets to the convention and gets nominated, then yes, we MUST coalesce around him and campaign for him because the alternative is FAR worse. Make no mistake: this is an absolutely shit hand we the voters have been dealt. But one party is determined to shit on the table and make you eat it or jail you if you don't.