The MAGAs will pump the shitnoutnof this, yes. However, I’m not ready to call the election, because the usual15% of mid-curve, low-information voters will, nevertheless, turn out. When they get their ballots enough might go, “Gee Whiz, a Kennedy is running! Who knew?” then throw the election, unpredictably.
Even a few percent Kennedy swing in one direction could change it all, as Ralph Nader did for Al Gore in 2,000.