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The importance of welfare cannot be overstated.
Literal
Welfare [possessive-の] importance [topic-は] how-much emphasize-[even if-ても] do-too-much [quotative-ということはない].
いくら強調してもしすぎるということはない is a set expression meaning 'no matter how much you emphasize it, it cannot be too much.' The いくら…ても frame ('no matter how X') sets up the futility of overshooting; ~すぎる normally tags excess, but the negation ~ということはない denies that any amount counts as excess. A formal way to insist on the importance of something.