I am sorry you have had this experience plumling, but it is very similar to our own.
From the entire post-natal group of 12 mothers and their children, we are now only ever spoken to by 1, and that is infrequent.
I was fed-up of several mothers openly sneering at our choice to go independent rather than use state schools, yet they can afford to live in homes that cost upward of £500k that unsurprisingly are within 300 yards of the best school in our area, a couple of others suddenly started attending church as soon as their eldest turned 2yo, in order to gain entrance to the 2nd best school in the area 
DH and I earn c£100k p.a. yet we cannot afford to move within the catchment of the best schools in our LA, in the main because DH is self-employed and his income extremely erratic. With my salary we can get a mortgage of £105k, which would buy a 1 bed flat nowhere near any vaguely decent schools, and difficult to house a family of 4.
Then there is the issue of before and after school care- the waiting list at the school we were allocated (an okay school, but not the best, and being forced to accept an extra bulge class in the year my DD was to start) was 3 years for after-school care! The settling-in period was half a term, with half days, shortened days etc. What are working parents supposed to do?
It costs us less to send our eldest to a very good independent school than it did to send her to private day nursery, that includes lunches, before and after-school care etc.
Sending both of them over 7 years will cost around £150k allowing for fee increases, but adding £150k to our mortgage even if we were allowed to (highly unlikely, and with large fees, rate-penalties etc) would still not allow us to move in catchment for a good school, and I utterly refuse to 'find God' to gain a school place- people who do so are beneath contempt.
That is before you come to any ideological arguments, or examining what is about to happen in the state sector.