My biggest concern about Apple, Amazon, Tesla, and Walmart is their history of abusing workers.
Bitcoin uses magnitudes less energy than the financial industry companies, it doesn't use any additional energy as it scales-up, and most of that is renewable energy. So bitcoin is definitely the ethical option for the environment when it comes to non-physical money (despite the disinformation on the net about this).
I prefer to put my money in credit unions (non-profit banks in the US) that do not invest in war, animal exploitation, or fossil fuels. Most credit unions loan out their money to their local community to support small business. That, bitcoin, and buying stocks in other ethical companies has been my approach to ethical investing.
Do you also think smoking tobacco doesn't cause lung cancer? Or that burning fossil fuels doesn't cause climate change?
I am the one thinking rationally. You seem to be incapable of detecting junk science published by big corporations.