Comment by yetihehe

Easy for start, just blast satellites passing over with comparably big amounts of rf. Or just require spacex to not provide service in your territory "or else". If those phased antennas are very good, they may block point sources of jamming by "muting" that small area, but if you pump enough energy into rf, antenna will be overwhelmed and will degrade fully. But that requires tracking each of satellites passing overhead with some tracking antenna, so you would have to deploy several antennas (even hundred for territory the size of Russia). I speak only theoretically, don't know that much about currently operating phase antennas, I just know the theory and can extrapolate.