UK doesn't have many checks on dictatorial powers now. Charles may be the last one. As a meritocratic person myself, this is an odd position for me. I think it's only rank incompetence that has saved us so far.
Electoral commission no longer independent
EU justice processes gone
UK Supreme court /judiciary could be nobbled (happened in many other places). Talk of "lefty lawyers", preventing judicial inquiries etc. Court system overloaded & underfunded
BBC taken over by Gov party at Chair level
Channel 4 threatened with removal of (non-existent) funding
First past the post disenfranchises most of the population. If the other parties have any sense, they will replace it when they get the chance.
This is off-topic to a degree, except Brexit affects everything. Food, justice, rights, travel, work, family life, migration, retirement, sewage, farming, communicable diseases for livestock, economy, exports, data, tax, imports, arrest warrants, extradition, politics and many more.