Do we have to Stallman this question again? Building from open source mostly controlled by a big-ol company is the opposite of future-proofing, especially when

Do we have to Stallman this question again? Building from open source mostly controlled by a big-ol company is the opposite of future-proofing, especially when "connectedness" is part of that company's bread and butter. Just having access to source doesn't guarantee much in this day and age.