Didn't they operate them in Iraq and Afghanistan continually for more than a decade? I just cannot see them lacking spares for a tank that has been in service for ages and has been continually updated and refreshed over its service life.
They do, which is why the argument they can't provide Abrams to Ukraine due to spares and maitenance seems weird unless their Abrams fleet is in worse shape than they care to admit with the most decent tanks being the ones getting sold to Poland.
Bradleys haven't been particularly succesful in the export market, though, unlike the Abrams. Since KMW doesn't have the sufficient production capacity at the moment to replace all the Leopards 2 that might get sent to Ukraine, it might open the field for the Abrams even more.I also don't buy the "afraid of tank" getting destroyed argument when they are providing hundreds of APC and IFVs which will in-fact end up getting destroyed at some point.