You do, by quoting an argument that Calvinists responded against four hundred years ago (and Calvin even longer ago, but we'll go with the Council of Dordt):
Hence it clearly appears that those of whom one could hardly expect it have shown no truth, equity, and charity at all in wishing to make the public believe:
--that the teaching of the Reformed churches on predestination and on the points associated with it by its very nature and tendency draws the minds of people away from all godliness and religion, is an opiate of the flesh and the devil, and is a stronghold of Satan where he lies in wait for all people, wounds most of them, and fatally pierces many of them with the arrows of both despair and self-assurance;
- --that this teaching makes God the author of sin, unjust, a tyrant, and a hypocrite; and is nothing but a refurbished Stoicism, Manicheism, Libertinism, and Mohammedanism;
--that this teaching makes people carnally self-assured, since it persuades them that nothing endangers the salvation of the chosen, no matter how they live, so that they may commit the most outrageous crimes with self-assurance; and that on the other hand nothing is of use to the reprobate for salvation even if they have truly performed all the works of the saints;
--that this teaching means that God predestined and created, by the bare and unqualified choice of his will, without the least regard or consideration of any sin, the greatest part of the world to eternal condemnation; that in the same manner in which election is the source and cause of faith and good works, reprobation is the cause of unbelief and ungodliness; that many infant children of believers are snatched in their innocence from their mothers' breasts and cruelly cast into hell so that neither the blood of Christ nor their baptism nor the prayers of the church at their baptism can be of any use to them; and very many other slanderous accusations of this kind which the Reformed churches not only disavow but even denounce with their whole heart.
There's nothing new under the sun.
It's funny: when you pointed out, anti-OSAS believers have the same vulnerabilities in their arguments as pro-OSAS believers, the resulting "arguments" simply depart from their Biblical moorings and just start attacking.
Live with it. Anti-OSAS is vulnerable to the same charge of encouragement to evil as its OSAS counterpart.