I am atheist from a Muslim community, and living in a Muslim community and country too, I would say that building a mosque in general anywhere is evil, and in a particular place is the evilest, because mosque is not only for worshiping as some people guess, and like other worship's houses of other faiths, it is a headquarter or a kitchen for cooking so many decayed meals against humanity or humanists, freedom; personal or general freedoms, against those who live in America and don’t follow the Muslim faith and against those descending from Arab races and don't believe in Islam. (Arab non-believers), against liberal people too. Thru mosque, Muslim clergy monitor and watch the behavior and acts of Muslim men and women who don't follow or adhere the strict Islamic rules, for example; those who have girl/boyfriends, go to discos or bars or parties, mingle with boys or men, or women. Women who don’t wear or undress (hijab) veil or head scarf, or don’t cover their bodies fully, those who don't pray, those who behave and dress freely like non Muslim Americans.
In case of finding or noticing such cases, they threat those women or men secretly, and press on them and on their families using all powers they have. They receive large amounts of money from Saudi Arabia, and some other Muslim and Arab countries. Yemen sends large numbers of secret islamists extremists who work as spies, thus they carry out those tasks. Mosque is an eye for many many things. Quranic verses command true Muslims to spread islam and the name of allah all over the world by any means; using all their rescores including their souls blood , lives, finance or money, as well as their estates, properties and possessions whatever they are ,and launch a continual religious war against those who don't believe in Mohammad and his religious rules ,in addition to the local arab non-believers or atheists for the sake of Allah and his prophet mohammad, it is religious commands on the shoulder of muslims cannot be dropped down. There verses in quran urges true muslims to fight non-muslims and locals who don't believe in islam or atheists anywhere , any place ,and any time by their souls, heir lives, and their money entirely and by building mosques, as mosques would be the kitchen of supposed war.
Mosque works as a violence-inciting source; directly and indirectly, explicitly and secretly, it works as a successful brainwash lab. They incite people and those who are so fanatic and youth thru prier’s speeches and thru the repeating of offensive quranic verses which urges violence murder of those who they name them the enemy of Allah and Islam. Mosque works as a successful tool of collecting huge amounts of money from inside and outside the country and from all categories of socities, especially traders. It works also as a good tool for distributing that money to those who work as terrorists self-bombers, murderers ,and violence and threat performers, spies who monitor or watch places where bombing or suicide operations or killing would occur. It spread social and intellectual backwardness, ignorance, wrong social and religious conceptions about unbelievers and about non Muslims, at the same time, it keeps ordinary Muslims in permanent alarm and thinking how to eradicate those who don’t share them their faith; or who have other faiths or none. Mosque is the source of all types of evil, it heats and despises atheists strongly and incites of killing them plainly. It is a real danger against free thought, intellect, liberalism, irreligion, rationality, naturalists, humanists, etc… it urges for religious dictatorship and tyranny. They insist on building the mosque in zero ground because the have evil aims.