It is a waste of effort to try and discuss biblical doctrine with those argue against positions of their own invention. All are "condemned" at conception is the biblical position, not "all are guilty" at conception.
And not the non-stop effort at "name calling" (attempting to brand biblical doctrine as false Calvinist doctrine.)
Recall we were "made sinners" conceived in iniquity, rather than become sinners at the age of accountability. Folks, ask yourselves, which view is biblical, thus found in scripture?
So by your logic one is condemned before they have even sinned. Is that the justice of God that we see in scripture, NO. The bible says we are condemned for lack of belief.
The fact you have misunderstood scripture does not help your position.
Does Psa 51:5 support your view? Assuredly, it does not.
First of all, it needs to be initially recognized that this passage is Hebrew poetry. And Hebrew poetry abounds with bold and imaginative figures of speech; it is frequently characterized by a freedom which departs from customary forms of expression. It is, therefore, a mistake of great magnitude to extract statements from poetical literature and thus employ them as a foundation for doctrinal schemes.
Secondly, one of the primary rules of Biblical interpretation suggests: “The language of Scripture may be regarded as figurative, if the literal interpretation will cause one passage to contradict another”
There are numerous Bible verses, in plain, literal language, that affirm the innocence of infants, and Psa_51:5 must not be arrayed against these. Consider the following:
(1) Scripture plainly teaches that sin is not inherited. “the son shall not bear the iniquity of the father” (Eze_18:20); every person is responsible for his own conduct (Rom_14:12).
(2) Human sinfulness commences in that period of one’s life that is characterized as youth (Gen_8:21; Jer_3:25).
(3) A child must reach a certain level of maturity before he is able to choose between evil and good (Isa_7:15-16).
(4) The qualities of little children are set forth as models for those who would aspire to enter the kingdom (Mat_18:3; Mat_19:14) and for those already in the church (1Co_14:20). Surely the Lord was not suggesting that we emulate little, totally corrupt sinners!
(5) The human spirit is not inherited from one’s parents; rather, it is given by God (Ecc_12:7; Heb_12:9). Hence, at birth it must be as pure as the source from whence it comes.
Clearly, babies are not born in sin.
Those who employ Psa_51:5 to buttress the doctrine that sin is inherited from one’s mother are faced with a serious problem. Jesus was both conceived by and brought forth from a human mother (Luk_1:31). If original sin is inherited from one’s mother, Christ had it. If, however, someone should suggest that depravity is received only from the father, Psa_51:5 cannot be used to prove it, for it mentions only the mother.