They didn't say that, no. This guy tried to hedge it a little bit, by saying that Trump was much worse but stopping short of saying that people should vote for Harris as a result.

Some of his other cofounders, as of election day, were still saying people should leave the line blank or vote for Jill Stein. She got almost as many votes as Harris did, in Dearborn, and Trump picked up something like 20% more votes than he had in 2020.