Earlier quoted context omitted.
Every voter is one person and in all parliamentary systems I just vote for representatives/parties that push the opinion I want. This isn’t different from any other issue.
> ... in all parliamentary systems I just vote for representatives/parties that push the opinion I want. ... on perhaps one or two hot-button issues. You won't find any "representative" which actually represents you on more than a few issues (at best), so voters have to prioritize—and then the winners go on to vote on their constituents' behalf on many other issues which weren't major talking points during the electi…
If there are 5-10 parties then there is usually at least a neighboring party that you can switch to if your pet issue isn’t correctly handled by the party you regularly vote for. It’s also a lot easier to steer the opinion of a 10-15% party than a 50% party (with the obvious downside that even if the 10% party forms a government, it will be a coalition where it only has 1:5 weight)