How can you use a Mac and support open-source?

Recent enlightenment:

I'm a bit put off by the recent Apple event and their stance in the past few years to make it impossible for Mac users to change any hardware. There have been a number of other recent events with app developers brought to light, like the exorbitant fees and kicking major companies off the app store.

We, as the collective developers and software engineers, are the main supporters of open-source, why do we continue to support and use Apple?

So I ask HN, to ask ourselves: Why are we all fiercely supporting open-source when building on Apple?

Apple, who is know for their proprietary, closed source, closed hardware, walled garden app store, dongle crafting - charger not even included company.

Apple is no longer open-source friendly. It's no longer a company I want to support.