First question on this Japanese sub-community. Sorry if this confusing or hard
to explain. Basically, I want to say

> Everyone should realize that if the YouTube thumbnail wasn't a picture of an
> anime girl, there wouldn't be 1 million views.

but get stuck on "that if". I'm not sure whether to nominalize the conditional
part before adding in 気がつく (realize), or something else. Wasn't sure where to
put the "realize" phrase, but here was my best shot:

> YouTubeサムネールはアニメの女の子の写真でなければ１００万視聴回数がない気がすべきつく。
CC BY-SA 3.0
2016-11-21T04:20:27.813
41065
2016-11-24T13:49:37.050
2016-11-21T07:20:51.543
1628
11670
question
conditionals nominalization
Nominalization of Conditionals to Use With 気がつく (realize)
You can say ことに気が付くべきだ or のに気が付くべきだ.
CC BY-SA 3.0
2016-11-21T07:16:08.357
41067
2016-11-21T07:16:08.357
7320
41065
answer
I think the translation you are looking for is:

> YouTubeサムネールはアニメの女の子の写真でなければ、１００万視聴回数がないことに誰もが気づくはず。

Note the use of はず (the speaker's expectations) vs. your original べき (duty).
CC BY-SA 3.0
2016-11-21T09:02:23.287
41068
2016-11-24T13:49:37.050
2016-11-24T13:49:37.050
11104
7823
41065
answer
I would say:

> １００万視聴回数がない **こと** に **気がつくべき** 。

  * realize → 気がつく。We don't use 気がすべき.
  * should → 〜すべき, 〜べき. 

The word order: 気がつく べき.  
... And it need こと. (I feel odd if there is no こと)
CC BY-SA 3.0
2016-11-21T13:04:34.970
41069
2016-11-21T13:04:34.970
14627
41065
answer
Here's my take on what you've written, though I might not be 100% correct.

1 - Be aware of tenses. You're talking about a state of being from the past (
**wasn't** a picture) affecting the present ( **be** 1 million).

> YouTubeサムネールはアニメの女の子の写真 **ではなかったら** １００万視聴回数がない気がすべきつく。

2 - Grammar. I've never seen 気がすべきつく before. I think you mean 気がつくべきです, but it
still should be all wrapped in a こと.

> YouTubeサムネールはアニメの女の子の写真 **ではなかったら** １００万視聴回数がない **ことに気がつくべきです** 。

3 - It still seems incorrect to me for some reason... The usage of **は** on
YouTube seems like you're asking YouTube itself to take notice. I might be
wrong, but this seems more logical to me:

> YouTube **の** サムネール **が** アニメの女の子の写真 **ではなかったら** １００万 **の** 視聴回数
> **を達成できないことに気がつくべきです** 。
CC BY-SA 3.0
2016-11-21T13:37:23.740
41070
2016-11-21T13:37:23.740
14630
41065
answer