Well, aside from the hyperbole - no. As I said, my goal would be to provide EQUAL educational opportunities for all. I know that is an ideal which, in practice, will be nearly impossible to accomplish. However, my viewpoint is that vouchers will ensure that goal is never achieved.
In response to your statement regarding redirecting your tax dollars, I think that's a slippery slope. What about the folks who never had kids, do they get to opt out? What about folks who have already raised their kids, do they get to opt out after their kids graduate? What about those among us who are pacifists, the Quakers, the Amish, the Mennonites, do they get to opt out of the defense portion of their taxes? I see problems with that mindset. We live in a society, we are all intertwined, it doesn't work if everyone just cares about themselves, or those like them. We're seeing that now.
Regarding gladiator academies, I'm sure there is a small percentage of schools that might be true of, but that isn't the norm. I also question if the public school that serves your neighborhood would be accurately described in that way.
My wife described herself as an itinerate teacher as she had students in every school in our district. As a result, she had a good idea of which elementary schools had the best staff. When it came time to send our girls to school, it was to the second poorest school in the district. Why? because of the principal and the staff. As we attended various school activities with the other parents it was obvious that many were struggling, but the folks who were attending PTO and school programs cared about their kids. I think a voucher system would work against them for all the reasons I've previously listed.