Yes.
The first act of disobedience by Adam affected Adam, Eve, and creation so much that all their progeny, in one way or another, bore the effects of that act. At a bare minimum, they became imperfect, and two imperfect creatures do not procreate perfect progeny. There is, in fact, evidence to support this effect occurred physiologically on a cellular level.
"Unconditional Consequences"? Can you clarify that? The consequences of sin are conditioned upon si, or acts of disobedience, unrighteousness, and lack of faith. This is implicit in the command, "...from the tree of the knowledge of good and evil you shall not eat, for in the day that you eat from it you will surely die." That is a conditional and causal statement. It was by the disobedient act of one man that sin entered the world (not just the man). However, In Genesis 3 and Romans 1 we see God ADDING to the naturally occurring consequences or effects of sin: He adds to the existing burden and gives one over to his/her lusts.
Therefore, it would appear the consequences are condition - conditioned upon the act - but some of them are a directly related to the cause-and-effect of the act itself and some of them are conditioned upon God adding effects not inherently related to the act.
I might, therefore, also amend the op to say the divide between Arms and Cals is an effect of sin, just as is the often-occurring rancor, straw men, ad hominem, and all the other fallacious content we read on a daily basis, but my synergist brother in Christ may be no greater or lesser a victim of original sin than me.