UK had, for several years, very low Corp tax rates, one of the lowest in the G20.
It gave us zero to 1% growth pa but cost the Govt a fortune.
People who advocate low taxes need to realise that businesses need more than that.
So i know a CEO of a firm that is growing fast, despite the NI costs, he grows through innovation and seeking skills from around the world, until he went overseas, it was lack of UK skills, technical, development & marketing that was holding him back.
They now have S/W dev and helpdesk abroad, various other functions in India the USA, S/Africa & Europe.
The rest of your post is advocating higher taxes, cutting triple lock isn't going to save us & how much would it save when many pensions forced onto benefits? inflation is falling, so is wage growth, so pension increases will slow.
But what we really need is skills and better public services so companies that do grow or invest in the UK, have the faith that the workforce can get healthcare, their kids have good schools, that the company can transport goods cheaply and on time.
We don't have any of this.