Pretty everything that is wrong with the UK can be traced back to her... she did what she did to make sections of society extremely wealthy.. i'd call that corruption... not skilled politician... aided by a right wing media, she was basically a polite Trump.
I also think she would have pandered to the ERG, as it was in the 2010s, she did become come Eurosceptic after all.
May sold out the country to keep her party together... which has worked out well....
On the wider point, PMs/Leaders of parties, should be selected on ability only... by enlarge, with an exception or two, Labour do select on merit.