I guess I find that less bad, but I wish it would instead focus on the concepts in the Constitution, not the flag and Republic. I'd rather rewrite it to something like this:

I pledge allegiance to uphold the Constitution of the United States of America, and the values therein, of liberty and justice for all.

That reminds me, I need to ask my kids if they're forced to do that. They go to a charter school, and I don't remember seeing a flag in each room. But our state is quite conservative, so I wouldn't be surprised if it was still a thing. That said, they're minors, so any pledge cannot, by definition, be binding in any way.