> Only guarantees Europe currently have are nuclear missiles in France and maybe UK
The security guarantee is from Washington. Europe is de facto de-militarised when it comes to protecting its geopolitical position. Dumping America as a security partner would require materially reducing standards of living across the Continent, something Europeans are reluctant to do.
Highly unlikely given your average age is 46. The time for draconian fertility policies was about 15 years ago. I think at this point most Europeans are just waiting for fiscal collapse.
