In so far as their motivations are global instability, climate change, and the rest - I'd agree. I wouldn't if we're talking about the headline. We could stand less pressure on the planet's finite resources.

Why?

Few reasons.

Population collapse is disastrous for society.

Specifically for western europe it is even worse, because while the natives are below the replacement rate, immigrants from polar opposite cultures are having them well above it. Difficult times are ahead indeed.