If this is about practical use instead of ethical arguments: I think QC chargers are more widely available right now than USB PD chargers. Basically every Chinese charger or powerbank nowadays does QC. I've rarely seen one with USB PD.
You are right if we only looking at the phone chargers. Actually that's my problem. I don't want to QC be the de facto standard for phone charging.
First, with USB PD we have the opportunity to use the same charger for every device we carry with us (Phone, Laptop, Camera, etc.). If my phone doesn't support it then I still have to carry another just for my phone.
Second, the USB-C standard prohibits any charging solution other than USB PD. Any proprietary adds another level of confusion using USB-C. Is it supports USB PD, Qualcomm Quick Charge, OnePlus Dash Charge, Oppo Super Vooc, Huawei SuperCharge, Motorola TurboPower or MediaTek Pump Express? In the end, something will fry my laptop if I just plug in a random charger and I will be angry. That's why I hate proprietary charging solutions.
