@randomchap - "... Johnson suspended parliament during critical period of the Brexit debate. Where parliament was meant to be able to debate and discuss, and eventually vote on how the country would try to Brexit. Essentially by proroguing parliament, he took away the chance for our elected representatives to actually represent us.
It deepened mistrust in government, damaged faith in our political system, and increased polarisation... "
I have a somewhat different take on that.
The Labour opposition - together with those Conservatives who wanted to remain in the EU - had repeatedly blocked every attempt Theresa May had made to get the most acceptable deal from Brussels. They weren't blocking those potential deals because they were bad deals, but because they were desperate to stay in the EU at all costs and were fighting for a second referendum - even if that meant the result of the referendum was ignored and the UK got a worse deal.
I think at one point even Peter Mandelson - who also had wanted a second vote - recognised that the actions of the Labour opposition and the Tory remainers had stemmed from a refusal to accept the results of a democratic vote and had effectively tied the hands of those negotiating with Brussels, and that they should not have done it.
That's why Johnson thought he had no choice but to prorogue Parliament - because he saw the opposition to be defying the will of the people.
As it happens I disagree with what he did, but I understand why he did it.
And I don't think it caused any more harm than the remainers blocking of the previous PM's attempts to get the best deal she thought she could get