Yes, the current electoral system is absolutely and completely broken. The legislatures being elected are not representative of the population. Basically every single district is now gerrymandered, something made possible by the fact that they are single member winner-take all affairs without proportionality, making elections almost absolutely pointless as the results are in most places practically predetermined. In fact, it has reached a point where here at least the opposition doesn't even bother to put up a fight the system is so complete rigged, which is of course a serious problem because functioning democracy relies on competition. We have ridiculously high rates of voter apathy as most voters are smart enough to realize that under the current system their votes are usually completely wasted. We have an unresponsive Congress that now does what the people want by some polls only 40% of the time. We are stuck with only two real choices, constantly forced to pick between only two options. The only thing that's not broken is that we have some kind of elections, and that's a pretty low standard to aim for.
And actually, France's legislature is not set up for proportional representation, as it uses single member districts elected by runoff voting. Still, even that is an improvement on the American system as it makes sure the winner actually has a majority and allows for more than two parties.