When you only talk about percentages in expenditure, you miss the point. That datum is meaningless. What matters is that the percentage is based on low ball figures of taxation that the govermin receives because of tax dodger corporations and 0.01% individuals that have the means and gull to pursue these nefarious activities at the expense of the rest of us.
So what?! 53% percent of a little is just that. On another note thought... I don't really know what the real numbers are, but that number seems really high, but then you said HHS and SS, they're not exactly the same thing, one is more or less welfare and the other is pensions.
The now extinct middle class ended up footing most of the bill, so the later increases in tax were done for us. The very rich don't even blink about this, and the very poor are the receivers of those benefits. Nothing wrong with helping those in need, if, and only if, it can be done fairly. Fairly is not, when those with the means are able to circumvent decency by filling the pockets of politicians so that they can pass very complex laws most of us cannot understand, and only benefit those in the 0.01% or whatever the number is.
Class warfare already happened, continues to happen, we already lost, and we don't yet know it.