Question about Voting Rights and the 14th Amendment. [View All]

[Solon]

Let me start off by quoting the relevent portion of the 14th amendment:
1. All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside. No State shall make or enforce any law which shall abridge the privileges or immunities of citizens of the United States; nor shall any State deprive any person of life, liberty, or property, without due process of law; nor deny to any person within its jurisdiction the equal protection of the laws.

Now as mentioned in one of my previous thread, this portion of the Amendment would make it unconstitutional to restrict marriage to heterosexuals only, as it violates equal protection and privileges or immunities, for homosexuals.
However, I wanted to bring up a point that just occured to me. In many states, ex-felons are denied the right (or privilege as some think it is) to vote. There is no explicit right for any citizen to vote in the Constitution or its various amendments. Only that it cannot be denied due to race, sex, or to anyone over the age of 18. However, one could argue that the 14th amendment could be used to say that equal protection of the law is violated when a citizen is denied the right to vote for any reason whatsoever. And if voting is considered a privilege then it would be unconstitutional to deny to one group and grant it to another. Are there any holes in my logic?