If your standard is perfection, then neither Roosevelt nor anybody else could ever achieve it.
If you look back with perfect 20-20 hindsight on those days, then FDR's actions were clearly inadequate for the coming Holocaust.
But Jewish leaders of that time appreciated what the president did for them, and said so publically.
Very few indicated disappointment that he had not done more.
Thankfully, neither you nor I will judge Roosevelt in eternity, only in finite history, and only on the basis of what he might have done under the circumstances.
We should also note that there was no other American leader -- none -- of that time who could have, or would have done better.
We elect human beings, not gods, to be our leaders, so we don't expect perfection from them, only in all good faith, their best efforts and talents.
Finally, I "get" that you're not here to make a historical case, only to preach.
So God bless you, and have a nice day!
Put not your trust in princes, nor in the son of man, in whom there is no help. His breath goeth forth, he returneth to his earth; in that very day his thoughts perish.
And hereby we do know that we know him, if we keep his commandments. He that saith, I know him, and keepeth not his commandments, is a liar, and the truth is not in him. But whoso keepeth his word, in him verily is the love of God perfected: hereby know we that we are in him. He that saith he abideth in him ought himself also so to walk, even as he walked.
If ye fulfil the royal law according to the scripture, Thou shalt love thy neighbour as thyself, ye do well: But if ye have respect to persons, ye commit sin, and are convinced of the law as transgressors. For whosoever shall keep the whole law, and yet offend in one point, he is guilty of all. For he that said, Do not commit adultery, said also, Do not kill. Now if thou commit no adultery, yet if thou kill, thou art become a transgressor of the law. So speak ye, and so do, as they that shall be judged by the law of liberty. For he shall have judgment without mercy, that hath shewed no mercy; and mercy rejoiceth against judgment. What doth it profit, my brethren, though a man say he hath faith, and have not works? can faith save him? If a brother or sister be naked, and destitute of daily food, And one of you say unto them, Depart in peace, be ye warmed and filled; notwithstanding ye give them not those things which are needful to the body; what doth it profit? Even so faith, if it hath not works, is dead, being alone.