OP are you a net contributor?
If you are a net contributor do you know how much by?
If you are a large net contributor, would you prefer to live in a society that does not provide social support to those less well off?
Being in the 40% tax bracket is not the same as being a net contributor. I think you would need a salary over 85k if you have 2 kids in state education to even pay £1 net contributions.
Completly understand its difficult when you cant provide what you want for children, and you see others getting what you want.
Perhaps if people understood, depending on your salary of course, that just because tax is paid, doesnt necessarily mean you are subsiding others, or perhaps only very slightly subsiding and this might give people a different perspective.
Personally, I am a net contributor, contributing circa 40- 50k per year into the system over what I consume. I would rather live in a society that has protections for all. Even looking at it from a completly personal selfish level, without the protections there would be significantly more social issues. That is not a society I would wish to live in...car jacking, bars on windows, paying for private security, large numbers of completely uneducated people, families living on the sides of roads. This isnt hyperbolic the reality in some countries.
Are there problems that need to be adressed, of course.These problems IMO are systemic, and will take at least one generation to fix. We should be looking at how to change the fundamental issues, rather than focusing on the somewhat unavoidable outcomes and resorting to infighting and punching down.