The kuffar cannot maintain masjids.
Allah (swt) says:
مَا كَانَ لِلْمُشْرِكِينَ أَن يَعْمُرُواْ مَسَاجِدَ الله شَاهِدِينَ عَلَى أَنفُسِهِمْ بِالْكُفْرِ أُوْلَئِكَ حَبِطَتْ أَعْمَالُهُمْ وَفِي النَّارِ هُمْ خَالِدُونَ
It is not for the polytheists to maintain the mosques of Allah [while] witnessing against themselves with disbelief. [For] those, their deeds have become worthless, and in the Fire they will abide eternally. (9:17)
إِنَّمَا يَعْمُرُ مَسَاجِدَ اللّهِ مَنْ آمَنَ بِاللّهِ وَالْيَوْمِ الآخِرِ وَأَقَامَ الصَّلاَةَ وَآتَى الزَّكَاةَ وَلَمْ يَخْشَ إِلاَّ اللّهَ فَعَسَى أُوْلَـئِكَ أَن يَكُونُواْ مِنَ الْمُهْتَدِينَ
The mosques of Allah are only to be maintained by those who believe in Allah and the Last Day and establish prayer and give zakah and do not fear except Allah , for it is expected that those will be of the [rightly] guided. (9:18)
Another point it that the taxes take haram money, since the kaffir earns his money from anything, so it can not be that a masjid will accept alcohol, zina, drug, gambling or riba money. Their money is dirty and simply cannot be trusted.