This thread just demonstrates how little idea most parents have about what a teacher's job entails and what a TA's entails. Which is understandable to a degree (how many of us DO understand someone else's job fully?) But I wish they didn't assume that they do know ours.
I valued my TA teams hugely. A few years into retirement, it's my TAs that I keep in contact with and catch up with regularly, not my teaching colleagues. We spent pretty much every minute of the day together, in a difficult area of education, supporting each other constantly. My various teams always had my back and I had theirs.
But they'd be the first to say that my role was massively different from theirs. That's why they had my back. They got it. They saw the stress and workload I was under, and they wouldn't have had my job for quids.
When they forged a relationship with a particularly complex child, I was thrilled. It was massively beneficial for the child, and it helped me. That child (if they were verbal) would have said they liked her better than me. But if the parent thought that that TA could have done everything I had to do as a teacher, better than me, the TA would be the first to tell them they were wrong. It's an entirely different responsibility and role.
So when the next poster (while ignoring the many who've already said the same thing during this thread) says that their child's TA could do a better job (in every area) of teaching the class than the teacher, in afraid they're almost certainly wrong (unless you're talking about the very very small number of teachers who've become TAs... and for the record I've never done across one, apart from in this thread)