Yes, someone will redistribute it without charge, but there are still ways you can make money from libre software:
• selling physical media (e.g. an installation disk or drive)
• selling downloads from a trusted, official server (with the bandwidth to serve a global audience)
• selling support
• asking for donations
• adopting a patreon model (if you want so-and-such feature or modification, please fund me so that I can do so)
and so on. Admittedly, it is more difficult to make money from libre software than non-libre software, but that seems to be a consequence of the law allowing non-libre software to be sold as it is (i.e. treating software like other copyrightable material). "It's more difficult to make money from libre software" is essentially "it's more difficult to make money when you don't threaten to sue people for inspecting, modifying, or exercising ownership of the tools they use". We could similarly say "it's easier to make money when you can threaten people at gunpoint", which would simply be true! were it not for society imposing a high price (imprisonment) for doing so.
• selling physical media (e.g. an installation disk or drive)
• selling downloads from a trusted, official server (with the bandwidth to serve a global audience)
• selling support
• asking for donations
• adopting a patreon model (if you want so-and-such feature or modification, please fund me so that I can do so)
and so on. Admittedly, it is more difficult to make money from libre software than non-libre software, but that seems to be a consequence of the law allowing non-libre software to be sold as it is (i.e. treating software like other copyrightable material). "It's more difficult to make money from libre software" is essentially "it's more difficult to make money when you don't threaten to sue people for inspecting, modifying, or exercising ownership of the tools they use". We could similarly say "it's easier to make money when you can threaten people at gunpoint", which would simply be true! were it not for society imposing a high price (imprisonment) for doing so.