There will not be a big backlash, people will forget soon and Dems will still lose big in November.
No one's gonna "forget" as this issue continues to impact more and more people's lives (the fallout has only just begun really), referendums are held in key states, backlash to states like Indiana trying to enact near-total bans intensifies, etc.
You're back in doomer mode Lurker. And there really is no evidence or reason at this point to think Democrats will "lose big" in November. The House is a big uphill battle, yes, but the Senate looks pretty good, as do several key governorships. Like reverse 2018.