Some Christians have also objected to it. Most irreligious people have just seen it as lame or crass, and aren't particularly outraged by it.
Look, whether you are a believer or not, religion deals with serious stuff that is supposed to be transcendent, dealing with things that are ultimate, with life, death, suffering... and making sense of it all and finding consolation in a supportive community; above being reduced to petty partisanship of this world, as if God were merely a mascot for a political faction. I don't know how things are done in your church, but making light of what is holy is something that was frowned upon in all the churches I am used to going to. And portraying DeSantis as a Christian "savior" is sacrilegious, whether it's "tongue in cheek" or not.