Forced to switch to biosimliar of Prolia by local provider clinic

Anyone else experiencing this issue?
My local clinic (Minneapolis) sent me a message that they are switching all Prolia injections to Jubbonti (also known as denosumab-bbdz).
Their "formulary" will no longer stock Prolia because they have decided it will save money in their health system and patients to use the bio similar since the biosimiliar is less expensive.
I have traditional Medicare and Medicare continues to cover Prolia for me so this change is only financially interesting to them not to me.
I pointed out to them that the reason I stayed on Prolia (now 9 years) is because it has the added benefit of antibone tumor properties and I have lung cancer. 2 years ago I saw a Mayo Endocrinologist regarding changing my osteoporosis medication and he told me that and recommended I stay on Prolia. Mayo has women with breast cancer on Prolia for 12 years for that reason.
My local Clinc said I could get a Prolia injection but NOT at any of their locations!!!
So because of the clinic's financial interests, I must find myself another doctor before my next injection is due. I of course called their patient complaint line. I find it very unethical. The drug I take should be chosen by the medical SPECIALIST because it is the best for me and not by profit driven decisions within a health organization!
They are effectively saying that they do not offer a complete choice of treatment options for patients, but only those with better financial return.
I recently switched my drugs to their pharmacy because my copay was so much lower on most. Now I don't trust them and will go back to CVS.