They've actually been responsible for tons of malware over the years. I recall seeing a massive leak back around 2015, and the story was buried by PR so quickly it left me very impressed.

The idea that iOS is in any way, shape, or form more safe than android is 100% PR. The fact Google allows users to override safety measures and install third party apps at their own risk is entirely why they've done this.

If Apple fans realize this is as safe as installing anything else on any computer (including macs), then Apple will have to answer to them. As long as they think they are more protected than android users, however, Apple's MO to take in money remains safe.