のも当然だ

it's only natural that

→ の
phrase Uncommon #11,950
it's only natural that Follows a clause to say that the situation or reaction is understandable or to be expected.
JA: 彼が疲れているのも当然だ。
EN: It's only natural that he's tired.

お前が怒るのも当然だよな。

I don't blame you for being angry.

彼が、お父さんのことを誇りにしているのも当然だ。

No wonder he's proud of his father.

君が理由を聞くのも当然だ。

It's only natural that you'd ask why.

政府の腐敗が続くのも当然だ

It's no wonder the government's corruption continues.

— エリート・スクワッド ブラジル特殊部隊BOPE (2010)

彼女が泣き出すのも当然だと彼は私に言った。

He told me it was only natural for her to start crying.

彼が怒ったのも当然だ。

It's only natural that he got angry.

彼が父親を誇りに思うのも当然だ。

It's only natural that he's proud of his father.

人気があるのも当然だ。

It's no wonder it's popular.

彼が息子を自慢するのも当然だ。

It’s only natural that he’s proud of his son.

君がその提案を拒むのも当然だ。

It’s only natural that you would reject that proposal.

彼がひどく怒るのも当然だ。

It's only natural that he's furious.

彼女がそう言うのも当然だ。

No wonder she says that.

彼が怒ったのも当然だと思います。

I think it was only natural that he got angry.

彼女が怒るのも当然だ。

It's only natural that she's angry.