You have absolutely no way to gauge how effective your demoralization campaign against conservatives was at keeping conservative voters from going to the polls at all. You spent two years tearing down the CPC and telling people not to vote for them. Of course that's going to have had an effect on conservative voter turnout. Enough to make the difference? We'll never know. all that really matters is you tried your damndest to keep Trudeau in office, for that you deserve the same criticism whether or not you succeeded.