However it was not an election - different beast, different rules.
It would possibly be easier to count (but harder to find) instances where promises have been kept unmodified. This isn’t always the politician’s fault of course as situations do change but on the whole it is very apparent that a wise man does not set too much by a politician’s promises - especially when they are trying to get elected.
Yes, the government has recently been found to have acted illegally in detaining asylum seekers where ther was evidence of torture - not sure how that relates to Brexit. Do you want to live in a country which ignores human rights?
As for your comments about education - they are rather rascist I am afraid - those ethnic minorities will be people who have the right of abode and the right to have their children educated in the UK. It is almost self-evidently true that if you are a member of a marginalised group access to education, healthcare, representation etc is harder. It is the mark of a civilised, mature and equal society that we wish to do something about it.
Just consider - we see almost every day on this Forum how members struggle with French bureaucracy when faced with linguistic and cultural barriers.
As for “not helping the white working class who are struggling in education” - what do you think is the practical result of improvements to education are. Even the Tories recognise that we need to improve schools and that benefits everyone (that said they could do with loosening the purse strings a bit).
The big problem with this group - the disaffected British benefit classes with low education is that there is little for them to do whatever level of education they achieve - that is entirely down to the UK government though (of both colours) and nothing to do with the EU