Google is neither cutting edge nor solving problems at global scale. They are an adtech company that produces ho-hum messaging apps that abuses human rights as defined by the United Nations as their primary business model.
Choosing to work there today means choosing to hurt society for personal gain, full stop.
Ostracizing friends that work in these big companies is no simple task. And I wouldn't exactly put all the blame on them when society and capitalism has built the platform for these companies to succeed.
I would accept friends and acquaintances recognizing their participation, as well as my own as a user of some products, and observe plus work together to figure a way out of this mess (regulations, break up of big tech?)
One also must recognize the philanthropic arms of these companies. They may be some attempt to balance the shit they're doing.
Choosing to work there today means choosing to hurt society for personal gain, full stop.