You must judge for yourself whether Muslims today go by what these Qur'anic verses say, or not.
5:51 - O ye who believe! Take not the Jews and the Christians for your friends and protectors: they are but friends and protectors to each other. And he amongst you that turns to them (for friendship) is of them. Verily, Allah guideth not a people unjust.
8:12 - "Remember thy Lord inspired the angels (with the message) 'I am with you: give firmness to the Believers: I will instil terror into the hearts of the Unbelievers: smite ye above their necks [i.e behead them - my comment] and smite all their fingertips off them.'
The next verse adds, "This because they contended against Allah and His Messenger."
9:5 - "But when the forbidden months are past, then fight and slay the Pagans wherever ye find them, and seize them, beleaguer them, and lie in wait for them in every stratagem (of war). But if they repent, and establish regular prayers and practise regular charity, then open the way for them."
9:28-29 - O ye who believe! Truly the Pagans are unclean; so let them not, after this year of theirs, approach the Sacred Mosque. And if ye fear poverty, soon will Allah enrich you, if He wills, out of His bounty, for Allah is All-Knowing, All-Wise.
Fight those who believe not in Allah, nor the Last Day n or hold that forbidden which hath been forbidden by Allan and His Prophet, nor acknowledge the religion of Truth (even if they are) of the People of the Book, until they pay the jizyah [poll tax] with willing submission, and feel themselves subdued."
[My note- non-muslims are called dhimm - unbelievers, even though they may believe in God and may be 'People of the Book'.]