Do Irish people born in America have to visit Ireland in order to be Irish?

You could have fifty stamps in your passport from visiting Ireland and it wouldn't make you one one-thousandth of a percent Irish. Why don't you idiot yanks get that through your thick noggins already? You desperately want to identify as being part of something that you're not. To us, you're about as Irish as the Rongorongo script. We ought to make it a requirement for all Irish Americans to pass an intelligence test to call themselves Irish. Guaranteed these stupid questions would disappear the next day. Jaysus you people are bungalows of the first order. 

Born in USA, one is American. Irish background (of which I have) does not make me Irish any more than French, Czech, German and any other ethnicities I can conjure from my relatives. I am American, as are you. Were you to move to Ireland, get citizenship there, and all the happiness of red tape or marriage which led to your being allowed to live and work in Ireland, yhen you could truly say "I am Irish"... without "descendant".

No, they don't. But expect to be called an american when you visit Ireland.

If you are an American citizen, you can call yourself Irish while in America. Unless you were born in Ireland, or have lived there for much of your life, you are not considered Irish in Ireland or in Europe generally. There's a difference in meaning in the word in the US, where it refers to one's heritage and ancestry while everyone around is assumed to be a US citizen; however in European countries including Ireland itself, you would be considered an American of Irish ancestry, and not Irish. 

People of Irish descent born in America are no longer Irish (although they may be able to claim a passport) - they're American of Irish descent...

No but it helps. Part of the matter is to down four to six pints of draught Guinness. Only Irish Guinness works.

If you're born and raised in the States? Then you're a Yank. If you're born and raised in Ireland? Then you're Irish.  It's as simple as that. 

People BORN in Ireland are Irish. People BORN in America are American. Your ANCESTRY may include Irish, but that doesn't make you Irish; neither does visiting. You can't become a citizen of any country by merely visiting. 

People born in the USA are American, maybe they have Irish ancestry so most "Irish- Americans" who claim to also be Irish are not, only  if their parent/s or grandparent/s are legal Irish nationals then they could apply to also become an Irish natioanal.

For someone to be a national of Ireland they do not have to visit Ireland but they do need to be legally registered as an Irish national and they are still Americans if they visit Ireland using an American passport

Somalian, Afghan, Sudanese , Ireland is black now

Born in America means that you are an American and not Irish! Just like blacks are blacks and NOT African-American! I am from Spain but I have lived in the USA 95% of my life which makes me Spanish.

No they are Irish diaspora therefore Irish/American of which I'm related to many 

Only if you're born on the island of Ireland are you Irish Roman Catholic and Protestants.

Absolutely not yet they may really enjoy traveling there.

Individuals brought into the world in the USA are American, perhaps they have Irish family so most "Irish-Americans" who case to likewise be Irish are not, just in the event that their parent/s or grandparent/s are lawful Irish nationals then they could apply to likewise turn into an Irish natioanal.

For somebody to be a public of Ireland they don't need to visit Ireland however they do should be lawfully enlisted as an Irish public and they are still Americans in the event that they visit Ireland utilizing an American visa

They can visit any place that will let them in.   Try Disneyland.  Plastic paddies are a source of money and amusement for the Irish.

they have to speak Gaeilge or Hiberno to be ethnically Irish

I'm not sure what the legal requirements for the nationality (being legally Irish) are