Detecting when blocked and switching proxy/“browser fingerprint”.
The fact is - many many people want to scrape these sites and there is massive demand for tools to help them do that, so if APIFY/Crawlee decide to take the moral ground and not offer a way around bot detection, someone else will.
BTW we continuously update this exhaustive post covering all legal aspects of web scraping: https://blog.apify.com/is-web-scraping-legal/