PR and/or FPTP are neither pro-democratic or anti-democratic. You should know better and if you don't then you should learn at Dictionary.com.
https://www.merriam-webster.com/dictionary/democracy"Definition of democracy
1a : government by the people especially : rule of the majority"Having 51% of voters electing MP's that hold 100% of the power is more democratic than 39% of the voters electing MP's that hold 100% of the power as we have in our current system.
And so to begin, my comment was that I suspect that PR would cause gridlock in government. If you applly yourself you might be able to come up with some specific example that supports your preference for PR. It's not going to be accepted as just a 'given'.
If I'm going to get into a debate with you I'll be basing my argument on the taxation question you're so fond of questioning.
I'd rather a bit more gridlock if the majority have a say than unfettered power of the minority. I tend to prefer minority governments in Canada because there's more consensus and other parties to put a check on the ruling party's power, despite causing more gridlock. Right now the minority Liberals tend to team up with the NDP to get bills passed, which means the MP's of ~49% of voters are represented in these two law-making parties, instead of only 39.5% of voters represented in the previous Liberal majority government.