The 14th Amendment has two applicable parts: The Due Process Clause and the Equal Protection Clause.
Under the Due Process Clause, no state can deprive its citizens of life, liberty or property (which has been interpreted to include rights and freedoms) without due process of law. This means states cannot deprive their citizens of rights contained in, guaranteed by or extending from the U.S. Constitution.
Although the US Constitution does not mention marriage in any way, it does contain a "Full Faith and Credit Clause" which requires state A to honor contracts made in state B. This is also applied to things such as license plates, legal name changes, car registrations, divorces, adoptions and marriages.
The 1996 Defense of Marriage Act ("DOMA") purports to enable states to violate the Full Faith and Credit Clause with respect to marriage, based upon the gender of the parties thereto. One can argue that the Due Process Clause prohibits states from violating the Full Faith and Credit Clause without judicial review.
Under the Equal Protection Clause, a state must provide equal protection under the law to all persons within its jurisdiction. This means that if a state enacts a law that has an adverse impact on one group of people, it may not do so arbitrarily and there must exist a compelling need for the law to be enacted.
As evidenced by California's Proposition 8 trials, it can be difficult to come up with a legal argument against same-sex marriage without relying upon religious doctrine which is inadmissible. This is one reason why the parties who sued to prevent same-sex marriage in California also fought very hard to prevent videotape of them speaking the arguments they made in court from being released to the public. They themselves argued that if the public saw them saying the things they said in Court, there would be outrage, death threats and their careers would be irreparably harmed.
One can argue that the Equal Protection Clause is violated by states that permit some citizens to marry, but not others and then cannot produce a coherent argument as to why this is necessary.
Not sure exactly what you mean. Handguns don't violate any amendment. Firearm ownership in general is protected by the second amendment.
violated the first amendment of the constitution
None, however, bans on gay marriage violate the equal protection clause of the 14th amendment.
They violated the First Amendment by restricting freedom of speech.
Many U.S. states have had their bans on same-sex marriage struck down as unconstitutional because they violate the "Equal Protection Clause" of the US Constitution, contained in the 14th Amendment.
The 14th Amendment to the U.S Constitution enforces federal law, including the Bill of Rights, on the state governments. However, before the 14th Amendment, states did have the ability to "violate" the rights of their citizens.
The 5th Amendment
It violates the 1st amendment.
The Fourteenth Amendment to the U.S. Constitution guarantees equal protection of the law from state to state, so no state cannot deny people their fundamental rights, such as the right to marriage.
In the Plessy decision, the Supreme Court ruled that such segregation did not violate the 14th Amendment of the Constitution of the United States.
The 16th amendment of the constitution on the United States of America is written regarding taxes for both people and religious institutions. If a church is taxed it would be a violation of this amendment.