Oddly specific… What are you doing OP? Should we be worried? Honestly “faster than light” travel is already too generic: do you mean going actually FTL or breaking the space barrier with wormholes or space displacement shenanigans that “look like” FTL? That said, Earth destroyed in a few decades because of the research or the PRODUCTION of such method? A little bit of context would made answering this question way more interesting…
I doubt we will get there. It’s not the same situation. You don’t only get more money and stability, you also get services and better quality of life overall. Imagine you live in italy: pay a lot of taxes and have broken roads, trash everywhere, public transportation with high record absenteism so basically working half the time but for some reasons record high number of politicians and their salary is also record high. Meanwhile if you want to do research/teach you get the lowest wages in the EU, you look for jobs and everyone wants to hire you off the books, government keeps cutting healtcare/pensions… Especially if you learned another language you yend to run as far away from here, you may get up to 5 times your salary in italy and do what you actually wanna work on, and live better too. You may have to pay more taxes, but you’ll be able to afford it and get something in return too. Funny enough you could even have vacations in your own country since you’ll now be able to afford it lol