The goal of free-software is to protect your freedom to use your hardware as you see fit and to protect that freedom for all people who receive the software.
By choosing free-software you are taking a stand against proprietary software that either limits peoples freedoms (e.g. preventing installation of non-Apple approved apps) or includes features that users don’t like, also known as anti-features (e.g. tracking you, recording your conversation, downloading your address book, etc).
Over the past few decades, users have been the proverbial frog in slowly boiling water. Hardware / chip manufactures have increasingly hidden behind NDA’s, only released binary blobs and don’t provide detailed documentation to allow people to write their own free-software drivers to use the hardware. NVidia is probably one of the most notorious examples of this.
This is the reason why people who want to use free-software are forced to make a “pragmatic” choice just to do their work, study, play, research, hack, etc.
Hence, choosing to use, support, program, help others to use free-software is a moral decision to push back against the increasing restrictions and anti-features being imposed on users by proprietary software/hardware developers.