Can the IRS be sued for violating equal protection under the law? They have admitted that they don't have the budget to go after high net worth individuals who can pay tax attorneys to hide their income in tax loopholes, so isn't that a tacit admittance that the rich can cheat on their taxes with impunity? If that's the case then not all citizens are held equally accountable to the same laws.
That would seem to be a violation of the fourteenth amendment (https://en.wikipedia.org/wiki/Equal_Protection_Clause) The clause, which took effect in 1868, provides "nor shall any State [...] deny to any person within its jurisdiction the equal protection of the laws".