As consumers we have the power to vote with our wallet. I'm actually proud to say that the last Apple product I bought was the iPad generation 1 for these exact ethical reasons. I'd really encourage others to look at the companies they buy from and see if they align with your morals before making a purchase.
What phone and/or tablet do you use? Clients of Foxconn include Amazon, Microsoft, Cisco, HP, Dell, Huawei, Nintendo, Sony, Toshiba, Motorola, Blackberry and many more. They don't just make iPhones. Next time you look at an XBox or Switch, guess where it came from? Do you know that workers prefer to work on the Apple lines because Apple has greater say in the factory conditions than the other clients and pays the wor…
I still have my iPad Generation 1 as my use case for it is reading epub and pdfs and that hasn't changed since 2010. Also my ethical stance with regards too my consumerism is something I've been doing since 2014.
Granted my laptop is a Dell XPS 15 9550 and while the machine itself is very environmentally friendly Dell's ethical practices leave a lot wanting but so do the other ultrabook manufacturers. In my line of work I am often client facing therefore I need form and function. I'm at least aware of the trade off and my eyes are open with regards to whom I'm supporting with my money.
To answer your question about how far I go, I rely on Ethical Consumer a lot and my own internet searches before making a purchase. Of course I'm also on the lookout for reputable news articles that are focused on this area good or bad.