I'll start - I don't shop a lot, but if I had to buy stuff like hardware parts, I do use Amazon sometimes, but if I can, then I try to use Flipkart. Realizing how it has turned into a monopoly, I try to look for alternative websites, and check if they're trustworthy.
If I remember correctly, the last three items I've bought online were hardware parts from some local websites. The chi-fi IEMs were bought through headphonezone.in, and they were super-fast in delivery - I had to wait for only four days.
I really hate to admit it, but I do use amazon quite a bit. It's not "like me" to use a company or service I despise, despite the truth of "no ethical consumption under capitalism," some businesses are just so evil that I feel it is wrong to support them in any way, even at the cost of convenience.
Here's the situation though. I rely on foodstamp benefits to be able to afford food. Amazon allows me to buy food in bulk online with my ebt card. I also have a disability that makes it prohibitively difficult to go to the grocery store as often as I would need to, and bulk buying online also stretches the benefits I get much further than regular grocery visits. Walmart and Target also now allow ebt cards for online food shopping, but they didn't used to, and they are evil as well!
I rationalize using amazon by telling myself that since mostly the only thing I get from them is food via ebt card, then it's really just money going straight from my state government to amazon, and my state government (just like most others) gives amazon free money anyway, so I may as well get something out of their capitalist sweetheart deal too.