Yes, the 5 year investigation launched under the Trump administration and led by a Trump appointee is a clear sign of a "two tiered system".
As for your so called "slap on the wrist" I suggest you look up the stats for how many people who lie on a 4473 when purchasing a gun are ever prosecuted. Here's a hint, not very many. If anything, Hunter was treated more harshly with that charge because of the public nature of this case then your average person would have been.
But I get it, keep repeating the talking points over and over, no matter what the truth actually is.