"Our civilization, our very way of life, heavily depends on X" does not imply "harvesting resource X is ethical" or "harvesting resource X is sustainable". Your argument is understandable from a bleeding-heart perspective, but misses out on the incredibly callous exploitation which capitalists undertake.

This tool was nice for me, because I could confirm that neither of my credit unions are known to fund fossil-fuel activities. But it's been known for a long time that credit unions are more reputable and ethical than banks, which is precisely why I chose credit unions.