I never claimed you said anything about cancer? The link is by a breast cancer organization. As I said later in the paragraph about the first study, it doesn't state there's any harm to humans. It doesn't appear to effect thyroid function, for example.
If you mean because of the vitamin D deficiency, you fix it by taking a supplement. Most people who are experiencing sun avoidance are people who do not leave the house and it's not normally related to sunscreen. Most people who wear sunscreen are not avoiding the sun.
As I said previously, the advice of 'avoid sunscreen ' is incorrect. If it's specific ingredients you're concerned about, you avoid those ingredients, not sunscreen as a whole. Nothing you've said supports your original argument, and I don't want to keep going through random links just for me to explain to you that the link you sent does not say what you think it says.
If the OP wants to reduce the sun exposure on her face, she should continue to wear sunscreen. It's very simple.