I find the whole “we won’t put up taxes” bit rather disengenuous.
It’s either a straight-up lie, or it’s sophistry in the sense that they won’t increase the rate of tax but will increase the tax take through the removal of allowances and reduction of thresholds - or they’re going to cut spending (which I highly doubt).
They’d get more respect if they were honest enough to admit that taxes will go up instead of pretending that they’ll somehow grow their way out of it.