This step will backfire really quick. Moreover it will be GOP backers who are angry about that law. In some way this is good news for privacy promotion. You can override this with vpn easily , and people (at least some of them) will start thinking about privacy, because browsing history was private from the early begging.That would not be the case with backdoor in WhatsApp. Then users would simply not care, as encryption was given extra at some point to messengers.