I'm pretty sure you could with all those crosses which have Jesus clearly slumped over nailed to them. Being lazy if you ask me.
There are all sorts of carved things people have created. Is that evidence by itself that people believed in whatever the image is? And crucifixion is an execution method used long before 1st-century Rome. I mean, Spartacus was crucified, so do people worship Spartacus?
Speaking of crucifixes... 22 years ago the theatre company I worked with decided to do a remake of a show we did back in 1981:
Jesus Christ Superstar. I was one of the small handful of people who had worked on the 1981 production who came back for this one.
However, this was at a time when my health was really bad, and not that many months before I ended up in the hospital for an extended time. I overestimated my strength, so wasn't able to continue as an active member of the props crew.
However, the crew head was unfamiliar with the show and completely unfamiliar with the
stuff people used in the 1st-century Roman Empire. She had to take on part of the set dressing as well, so she was more than a bit panicked.
It was decided that I would stay on the crew as a consultant. We went to Walmart on a scouting/shopping trip, and I steered her to the craft department.
We found a bunch of useful stuff that could easily be altered (easy for me as I didn't have to do any of it; sometimes it's really handy to be allergic to things like paint). I kept up a stream of explanations for how this-that-the-other was used back then plus an explanation of which languages were on the sign over the cross (she asked in a separate phone call). These were met with "How do you KNOW this?"
Answer: "I read history."
Anyway, the cross... a friend was at loose ends and looking for something to do. She could sew, and they needed people for the costume crew. I suggested she join, so she did.
Next thing I knew, I got a panicked phone call: "They want me to make Jesus' loincloth, and I don't know what it's supposed to look like, what do I do?!"
My reaction:
My answer: "_______, you go to church 3 times per week. You see more crucifixes in a month than I see in years. How can you not know what they look like?"
Turns out she had only considered the two-dimensional aspect, and not the 3-D, practical aspects of how this garment would actually be made and worn. So I mentally flipped through the styles of loincloths I'd read about (there are several distinct styles), and explained it to her. Then I said she should ask the actor to come in for a discussion and fitting, as he would naturally have his own ideas about what he wanted to wear and how. I warned her that a fitting would necessitate that he remove his pants (trousers). I told her he'd worked on the first production 20 years earlier, as one of the apostles, and would treat her with courtesy and professionalism. He was very serious about getting into the proper mindframe for the characters he played, and costuming was part of that.
Everything went well. Of course I'm partial to the first show - different cast, different mix of people, different director's vision. The main thing is that the audience liked it.