> all Western European nations have stricter voting laws / requirements than the US does
The UK* has never required voting ID for elections, and it is possible to walk into a local polling station and be given a ballot paper after just stating your name and address. Sadly that may no longer be the case for future elections, because the UK Conservative party has decided to introduce a voter ID requirement, modelled on the success that the Republicans have had with it at decreasing turnout especially among the poor and minorities.
The fact that other Western European nations have voter ID laws is likely because they generally have mandatory national ID cards already, and it makes to use those to record who voted (how many times). If Republicans were first pushing for mandatory state ID, then later requiring those IDs at polling time would not be seen as so suspicious.
> The same is true of immigration restrictions.
I'm sure it's possible to find examples of policies in some European countries which are worse than the equivalent US policy, but to provide some factual comparison for how welcoming the US is of (poor) immigrants, let me point out that Sweden hosts 8.52 refugees per 1,000 people while the US hosts 0.92, ranking 13th and 68th respectively on the global league table for this.[0]
But you're right, the US would receive criticism for adopting more bigoted policies, just as France was condemned for its bigoted face veil policy.[1] If you live in the US, it shouldn't be surprising that you hear (and are more sensitivity to) criticism of the US more than criticism of countries like France.
* Technically voter ID was trialled in some English constituencies recently, and it has long been standard in Northern Ireland, so perhaps "Scotland" is a better example of a "Western European nation" here. On the other hand, not every US state requires voter ID, so I hope it's still fair for me to say "the US does" require it.
[0] https://www.nationmaster.com/country-info/stats/People/Migra...
[1] https://www.independent.co.uk/news/world/europe/france-niqab...